diff --git a/app/src/main/java/eu/faircode/email/FragmentDialogSearch.java b/app/src/main/java/eu/faircode/email/FragmentDialogSearch.java
index 409a74160c..a81d4795a1 100644
--- a/app/src/main/java/eu/faircode/email/FragmentDialogSearch.java
+++ b/app/src/main/java/eu/faircode/email/FragmentDialogSearch.java
@@ -102,6 +102,7 @@ public class FragmentDialogSearch extends FragmentDialogBase {
         final CheckBox cbSubject = dview.findViewById(R.id.cbSubject);
         final CheckBox cbKeywords = dview.findViewById(R.id.cbKeywords);
         final CheckBox cbMessage = dview.findViewById(R.id.cbMessage);
+        final TextView tvSearchTextUnsupported = dview.findViewById(R.id.tvSearchTextUnsupported);
         final CheckBox cbNotes = dview.findViewById(R.id.cbNotes);
         final CheckBox cbHeaders = dview.findViewById(R.id.cbHeaders);
         final CheckBox cbHtml = dview.findViewById(R.id.cbHtml);
@@ -354,6 +355,8 @@ public class FragmentDialogSearch extends FragmentDialogBase {
         cbSubject.setChecked(last_search_subject);
         cbKeywords.setChecked(last_search_keywords);
         cbMessage.setChecked(last_search_message);
+        tvSearchTextUnsupported.setText(getString(R.string.title_search_text_unsupported,
+                        "full text search not supported"));
         cbNotes.setChecked(last_search_notes);
         tvAfter.setText(null);
         tvBefore.setText(null);
diff --git a/app/src/main/res/layout/dialog_search.xml b/app/src/main/res/layout/dialog_search.xml
index bea6812096..b0d746d506 100644
--- a/app/src/main/res/layout/dialog_search.xml
+++ b/app/src/main/res/layout/dialog_search.xml
@@ -319,6 +319,18 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/cbMessage" />
 
+        <eu.faircode.email.FixedTextView
+            android:id="@+id/tvSearchTextUnsupported"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="6dp"
+            android:text="@string/title_search_text_unsupported"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
+            android:textStyle="italic"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/tvSearchTextHint" />
+
         <CheckBox
             android:id="@+id/cbNotes"
             android:layout_width="0dp"
@@ -329,7 +341,7 @@
             android:textAppearance="@style/TextAppearance.AppCompat.Medium"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/tvSearchTextHint" />
+            app:layout_constraintTop_toBottomOf="@id/tvSearchTextUnsupported" />
 
         <CheckBox
             android:id="@+id/cbHeaders"
@@ -528,7 +540,7 @@
             android:layout_width="0dp"
             android:layout_height="0dp"
             app:constraint_referenced_ids="
-            cbSearchIndex,tvSearchIndexHint,cbSenders,cbRecipients,cbSubject,cbKeywords,cbMessage,tvSearchTextHint,cbNotes,
+            cbSearchIndex,tvSearchIndexHint,cbSenders,cbRecipients,cbSubject,cbKeywords,cbMessage,tvSearchTextHint,tvSearchTextUnsupported,cbNotes,
             tvAnd,cbUnseen,cbFlagged,cbHidden,cbEncrypted,cbAttachments,
             btnAfter,btnBefore,tvBefore,tvAfter" />
     </androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index e7f3bde426..2784383e73 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1250,6 +1250,7 @@
         The options below are to continue searching the email server.
     </string>
     <string name="title_search_text_hint">Searching for text in messages, when there are a large number of messages, might not work on some servers</string>
+    <string name="title_search_text_unsupported">\'%s\' means that the mail server doesn\'t support searching in message texts</string>
     <string name="title_search_size_hint">Searching for messages by size, when there are a large number of messages, might not work on some servers</string>
     <string name="title_search_more">More options</string>
     <string name="title_search_use_index">Use search index</string>